Packing body

ABSTRACT

A packing body includes a bottom plate on which a packed body is placed, a box body that covers the packed body, and a restricting member, of which one end is fixed to the bottom plate and the other end protrudes toward a part of the packed body with a gap and that restricts lateral movement of the packed body by coming into contact with the part of the packed body in a case where the packed body has moved laterally, in which clearance between the restricting member and the part of the packed body is larger than a gap between an inner surface of the box body and the packed body, and the clearance is defined as a movement amount obtained by adding an elastic deformation amount of the restricting member in a case where the packing body has received a horizontal impact to the gap between the restricting member and the part of the packed body.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is based on and claims priority under 35 USC 119 fromJapanese Patent Application No. 2021-048576 filed Mar. 23, 2021.

BACKGROUND (i) Technical Field

The present invention relates to a packing body.

(ii) Related Art

There is known a heavy object packing device including a pallet, a heavyobject that has a storage chamber in a cabinet placed on the pallet, acorrugated outer box that covers the heavy object, and a band thatcouples the outer box and the pallet to each other. In the heavy objectpacking device, the pallet and the heavy object are connected to eachother by a connecting fitting, the heavy object and the outer box arefixed to each other by a mounting fitting fixed to the heavy object anda fastening bolt screwed with the mounting fitting, and a washer havinga protrusion protruding toward an outer box side is interposed betweenthe bolt and the outer box (JP1995-149348A).

There is also known a pallet including columnar girder members, theplurality of girder members being provided to be arranged in parallelwith each other at an interval in one direction, a reinforcing memberthat consists of corrugated paper, the reinforcing member having arectangular base part, to which the plurality of girder members arefixed, and two reinforcing wall parts, which are connected to the basepart and rise perpendicularly to the base part from each of sides of thebase part perpendicular to a longitudinal direction of the girdermembers, and a recessed deck part that consists of corrugated paper, thedeck part having a rectangular bottom part fixed to the base part whileoverlapping the base part and a first wall part, which risesperpendicularly to the bottom part from each of the sides of the bottompart perpendicular to the longitudinal direction of the girder membersand to which the two reinforcing wall parts are fixed respectively(JP2019-156478A).

SUMMARY

Aspects of non-limiting embodiments of the present disclosure relate toa packing body that does not have a buffer material between the packingbody and a packed body, and prevents an impact on the packed body at thetime of transporting.

Aspects of certain non-limiting embodiments of the present disclosureaddress the above advantages and/or other advantages not describedabove. However, aspects of the non-limiting embodiments are not requiredto address the advantages described above, and aspects of thenon-limiting embodiments of the present disclosure may not addressadvantages described above.

According to an aspect of the present disclosure, there is provided apacking body including a bottom plate on which a packed body is placed,a box body that covers the packed body, and a restricting member, ofwhich one end is fixed to the bottom plate and the other end protrudestoward a part of the packed body with a gap and that restricts lateralmovement of the packed body by coming into contact with the part of thepacked body in a case where the packed body has moved laterally, inwhich clearance between the restricting member and the part of thepacked body is larger than a gap between an inner surface of the boxbody and the packed body, and the clearance is defined as a movementamount obtained by adding an elastic deformation amount of therestricting member in a case where the packing body has received ahorizontal impact to the gap between the restricting member and the partof the packed body.

BRIEF DESCRIPTION OF THE DRAWINGS

Exemplary embodiment(s) of the present invention will be described indetail based on the following figures, wherein:

FIG. 1 is an overall perspective view showing an outline of a packingform using a packing body according to the present exemplary embodiment;

FIG. 2 is a perspective view showing an outline of a pallet of thepacking body according to the present exemplary embodiment;

FIG. 3 is an exploded perspective view of a box body;

FIG. 4A is a perspective view showing an outline of a restrictingmember, and FIG. 4B is a view for describing elastic deformation of therestricting member;

FIG. 5 is a schematic cross-sectional view showing the packing form of apacked body using the packing body;

FIGS. 6A and 6B are partially enlarged views for describing placement ofthe packed body on the pallet by the restricting member;

FIG. 7 is a view showing a horizontal impact test of the packing body;

FIG. 8 is a graph showing an elastic deformation amount of therestricting member in the horizontal impact test;

FIG. 9 is a graph showing contact of the packed body to an inner surfaceof the box body in the horizontal impact test;

FIG. 10 is a view showing a state where the packed body has movedhorizontally on the pallet and has come into contact with the innersurface of the box body in a case where the horizontal impact test hasbeen performed;

FIG. 11 is a view showing behavior of the packed body in a case where apacking body of a comparative example, in which the restricting memberdoes not deform elastically, has received an impact force in ahorizontal direction;

FIG. 12 is a schematic cross-sectional view showing the packing form ofthe packed body using a packing body of another comparative example,which has a buffer pad; and

FIG. 13 is a schematic cross-sectional view showing behavior of thepacked body at the time of a horizontal impact on the packing body ofthe comparative example, which has the buffer pad.

DETAILED DESCRIPTION

Next, the present invention will be described in more detail withreference to the drawings by giving an exemplary embodiment and aspecific example below, but the present invention is not limited to theexemplary embodiment and the specific example.

In addition, in the description using the drawings below, it is to benoted that the drawings are schematic, the ratio of each dimension isdifferent from the actual ratio, and members that are not necessary forthe description to facilitate understanding will not be shown asappropriate.

(1) Configuration of Packing Body

FIG. 1 is an overall perspective view showing the outline of a packingform using a packing body 10 according to the present exemplaryembodiment. FIG. 2 is a perspective view showing the outline of a pallet20 of the packing body 10 according to the present exemplary embodiment.FIG. 3 is an exploded perspective view of a box body 30. FIG. 4A is aperspective view showing the outline of a restricting member 40, andFIG. 4B is a view for describing elastic deformation of the restrictingmember 40. Hereinafter, an overall configuration and the packing form ofthe packing body 10 will be described with reference to the drawings.

The packing body 10 consists of the pallet 20, the box body 30, and therestricting member 40. As shown in FIG. 1, in a state where the lateralmovement of a packed body 100 is restricted by the restricting member 40and is placed on the pallet 20, the packed body 100 is packed by beingcovered with the box body 30. In FIG. 1, in order to show the packedbody 100, the box body 30 covering the packed body 100 is shown by abroken line.

The pallet 20 according to the present exemplary embodiment is anexample of a bottom plate, and is configured by, for example, a woodenbottom plate member 21 that forms a bottom surface, a wooden girdermember 22 configured by a plurality of vertical girders and horizontalgirders provided on the bottom plate member 21, and a wooden top platemember 23 that is provided on the girder member 22 and forms a topsurface, as shown in FIG. 2. Positioning members 24 that position alower end part of the box body 30 are provided at four corners of thetop plate member 23.

The box body 30 is configured by a quadrangle tubular body part 31 thatconsists of a corrugated sheet and a lid part 32 that closes an opening31 a provided in an upper part of the body part 31.

The body part 31 has a size that allows a relatively heavy electronicdevice including a caster 101 to be accommodated, which is the packedbody 100, and a lower end part and an upper end part thereof are opened.In a state where the packed body 100 is placed on the pallet 20, thebody part passes so as to wrap the packed body 100 from the opening 31 ain a lower part and is positioned on the top plate member 23 of thepallet 20 by the positioning members 24.

The lid part 32 is a lid that closes an opening 31 b in the upper endpart of the body part 31 that is passed through and covers the packedbody 100, and is formed by a corrugated sheet.

Hereinafter, the box body 30 will be referred to as the box body 30without distinguishing between the body part 31 and the lid part 32.

The restricting member 40 is a sheet metal plate member that can deformelastically, and has a base part 41 fixed on the top plate member 23 ofthe pallet 20 and a hook part 42 that enters a hole 111 (see FIG. 4B)provided in a bottom surface of the packed body 100 and presses floatingof the packed body 100 from the pallet 20, as shown in FIG. 4A. As shownin FIG. 4B, in a case where an external force F is applied in ahorizontal direction, the restricting member 40 is capable of deformingelastically. The restricting member 40 is formed of high strength steelas a material.

(2) Packing Form of Packed Body

FIG. 5 is a schematic cross-sectional view showing the packing form ofthe packed body 100 using the packing body 10. FIGS. 6A and 6B arepartially enlarged views for describing the placement of the packed body100 on the pallet 20 by the restricting member 40. FIG. 12 is aschematic cross-sectional view showing the packing form of the packedbody 100 using a packing body 200 of a comparative example, which has abuffer pad PD. FIG. 13 is a schematic cross-sectional view showingbehavior of the packed body 100 at the time of a horizontal impact onthe packing body 200 of the comparative example, which has the bufferpad PD.

As shown in FIG. 12, the packing body 200 according to the comparativeexample prevents lateral skidding of the packed body 100 at the time oftransportation as the restricting member 40 restricts lateral movementof the lower end part of the packed body 100 placed on the pallet 20 andthe buffer pad PD arranged between the packed body 100 and the box body30 restricts lateral movement of the upper end part. On the other hand,the size of the packing body 200 (shown by a width W1 in FIG. 12)increases by the thickness of the buffer pad PD, and there is apossibility that loading efficiency declines.

As shown in FIG. 13, in a case where a horizontal impact is received bythe packing body 200 in which the buffer pad PD is arranged, the impacton the packed body 100 is received only by the buffer pad PD. Thus,there is also a possibility that the impact is intensively received bythe upper end part of the packed body 100, on which the buffer pad PD isarranged, as shown by arrows in the drawing, so that the packed body 100is damaged.

As shown in FIG. 5, in the packing body 10 according to the presentexemplary embodiment, the lateral movement of the lower end part of thepacked body 100 placed on the pallet 20 is restricted by the restrictingmember 40, and the buffer pad PD is not arranged between the packed body100 and the box body 30 at the upper end part. A gap G1 (see FIG. 6A)between the packed body 100 and the box body 30 is smaller than thecomparative example having the buffer pad PD. Therefore, in a case wherean impact is received in the horizontal direction, impact energy isreceived by the pallet 20 and the box body 30.

As shown in FIG. 6A, at the lower end part of the packed body 100, therestricting member 40 fixed to the top plate member 23 of the pallet 20has entered the hole 111 provided in a base body 110, which is thebottom surface of the packed body 100, restricting the lateral movementof the packed body 100.

Specifically, clearance between the restricting member 40 and the hole111 of the base body 110 of the packed body 100 is larger than the gapG1 between an inner surface 30 a of the box body 30 and the packed body100. Herein, the clearance refers to the amount of a space or a distanceat which two objects can move relatively. In the present example, theclearance is clearance between the hole 111 and the restricting member40, and is the amount of a distance at which the base body 110 havingthe hole 111 can move with respect to the restricting member 40 in acase where the packing body 10 has received an impact in the horizontaldirection and has moved laterally. That is, the clearance is an amountobtained by adding an elastic deformation amount δ of the restrictingmember 40 in a case where the packed body 100 has moved horizontally andan edge 111 a of the hole 111 has come into contact with the restrictingmember 40 to a gap G2 between the hole 111 and the restricting member40.

As shown in FIG. 4B, the restricting member 40 is fixed to the top platemember 23 of the pallet 20 by a screw, and can deform elastically in thehorizontal direction with the base part 41 as a base point in a case ofreceiving an impact force in the horizontal direction. For example, inthe present exemplary embodiment, the restricting member 40 is likely todeform elastically in the horizontal direction in a case of receivingthe impact force in the horizontal direction as the gap G2 between thehole 111 and the restricting member 40, which is obtained by subtractingthe plate thickness t of the restricting member 40 from a width L1 ofthe hole 111, is set to 6.8 mm (gap on one side is 3.4 mm), the gap G1between the inner surface 30 a of the box body 30 and the packed body100 is set to 5 mm, and the plate thickness t of the restricting member40 is set to 1.6 mm, which is smaller than the plate thickness (2.3 mm)of the base body 110, as shown in FIG. 6A.

Specifically, in a case where the packing body 10 accommodating thepacked body 100 has collided in the horizontal direction at a speed of4.8 km/h, the elastic deformation amount δ of the restricting member 40is 1.6 mm or more. As schematically shown in FIG. 6B, the packed body100 moves horizontally without lateral movement thereof being restrictedby the restricting member 40 on the pallet 20, and the entire surface ofthe packed body 100 comes into surface-contact with the inner surface 30a of the box body 30.

(3) Impact Absorption of Packing Body

FIG. 7 is a view showing a horizontal impact test of the packing body10. FIG. 8 is a graph showing an elastic deformation amount of therestricting member 40 in the horizontal impact test. FIG. 9 is a graphshowing contact of the packed body 100 to the inner surface 30 a of thebox body 30 in the horizontal impact test. FIG. 10 is a view showing astate where the packed body 100 has moved horizontally on the pallet 20and has come into contact with the inner surface 30 a of the box body 30in a case where the horizontal impact test has been performed. FIG. 11is a view showing the behavior of the packed body 100 in a case where apacking body 300 of a comparative example, in which the restrictingmember 40 does not deform elastically, has received an impact force inthe horizontal direction.

The horizontal impact test shown in FIG. 7 has been performed on thepacking body 10 according to the present exemplary embodiment, and theimpact absorption of the packing body 10 has been evaluated.

Since the packing body 10 according to the present exemplary embodimentdescribed above includes, on a bottom surface side, the pallet 20 havingthe wooden girder member configured by the plurality of vertical girdersand horizontal girders between the bottom plate member 21 and the topplate member 23, transport by a forklift is possible.

At the distribution stage, for example, in a warehouse, the packing body10 is transported in a state of being horizontally held by the forklift,is abutted against a wall surface to be aligned, and is stacked. At thistime, there is a possibility that an end part of the pallet 20 and aside surface of the box body 30 receive an impact in the horizontaldirection, and the packed body 100 is inclined on the pallet 20 andreceives a partially large impact.

EXAMPLE

As shown in FIG. 7, the horizontal impact test has been performed undera method of fixing the packing body 10 that has packed the packed body100, which is covered with the box body 30 in a state where the packingbody is placed on the pallet and lateral movement thereof is restrictedby the restricting member 40, to a sliding base 50 by a belt (notshown), and causing the sliding base 50 to slide in the horizontaldirection at a speed of 4.8 km/h to collide with a pedestal 60. In thehorizontal impact test, the packing body 10 is subject to a speed changeof 4.8 km/h in the horizontal direction.

FIG. 8 shows a relationship between the elastic deformation amount δ(mm) of the restricting member 40 and time, in a case where thehorizontal impact test has been performed under the method shown in FIG.7. Although the elastic deformation amount of one restricting member 40,among the four restricting members 40 fixed on the pallet 20, is shownin FIG. 8, any one of the other three restricting members 40 has thesame elastic deformation amount.

In FIG. 8, for approximately 0.008 sec (see A in the graph) after thecollision, the packed body 100 moves horizontally within a range of thegap G2 of the hole 111 and does not come into contact with therestricting member 40, and the restricting member 40 does not deformelastically. Then, as the edge 111 a of the hole 111 formed at the basebody 110 of the packed body 100 comes into contact with the restrictingmember 40 with the horizontal movement of the packed body 100, therestricting member 40 deforms elastically by approximately 16 mm atapproximately 0.03 sec (see B in the graph) after the collision, andafter then, the deformation amount of the restricting member 40decreases with the elapse of time.

That is, in a case where the pallet 20 on which the packed body 100 isplaced has collided in the horizontal direction at a predetermined speed(4.8 km/h in the horizontal direction), the elastic deformation amount 5of the restricting member 40 in the horizontal direction is larger thanthe movement amount of the packed body 100 in the horizontal direction.

FIG. 9 shows a relationship between a change in a distance between thelower end part and the upper end part of the packed body 100 and theinner surface 30 a of the box body 30 and time, in a case where thehorizontal impact test has been performed under the method shown in FIG.7. In FIG. 9, a distance between the upper end part of the packed body100 and the inner surface 30 a of the box body 30 decreases forapproximately 0.025 sec (see A in the graph) after the collision, adistance between the lower end part of the packed body 100 and the innersurface 30 a of the box body 30 decreases for approximately 0.027 sec(see B in the graph) after the collision, and a time difference is 0.002sec (2 msec). That is, the upper end part and the lower end part of thepacked body 100 collide with the inner surface 30 a of the box body 30with a time difference of 10 msec or less.

As described above, in a case where the pallet 20 on which the packedbody 100 is placed has collided in the horizontal direction at apredetermined speed (4.8 km/h in the horizontal direction), a timingwhen the upper end part of the packed body 100 comes into contact withthe inner surface 30 a of the box body 30 is earlier than a timing whenthe lower end part of the packed body 100 comes into contact with theinner surface 30 a of the box body 30.

FIG. 11 shows the behavior of the packed body 100 in a case of receivingan impact force in the horizontal direction in the packing body 300 ofthe comparative example, in which the restricting member 40 does notdeform elastically in a case where the packed body 100 has movedhorizontally and the edge 111 a of the hole 111 has come into contactwith the restricting member 40.

In a case where the restricting member 40 does not deform elastically,as shown in FIG. 11, the packed body 100 moves horizontally on thepallet 20 only by the gap G2 between the restricting member 40 and thehole 111 of the packed body 100, the upper end part is inclined with acontact part between the restricting member 40 and the hole 111 as abase point, and a partially large impact is received as shown by anarrow in the drawing.

FIG. 10 shows a state where the packed body 100 has moved horizontallyon the pallet 20 and has come into contact with the inner surface 30 aof the box body 30, in a case where the horizontal impact test has beenperformed under the method shown in FIG. 7.

In the packing body 10 of the present exemplary embodiment, by makingthe clearance between the restricting member 40 and the hole 111 of thepacked body 100 larger than the gap G1 between the inner surface 30 a ofthe box body 30 and the packed body 100, the packed body 100 moveslaterally on the pallet 20 without being restricted by the restrictingmember 40, and the entire surface of the packed body 100 comes intosurface-contact with the inner surface 30 a of the box body 30 as shownby arrows in the drawing.

(4) Workings and Effects of Packing Body

In the packing body 10 according to the present exemplary embodiment,the clearance between the restricting member 40 and the hole 111 of thebase body 110 of the packed body 100 is larger than the gap G1 betweenthe inner surface 30 a of the box body 30 and the packed body 100. Theclearance includes the elastic deformation of the restricting member 40in a case where the packed body 100 has moved horizontally and the edge111 a of the hole 111 has come into contact with the restricting member40. In a case of receiving a horizontal impact, the packed body 100moves horizontally on the pallet 20 at least by the amount of theclearance and is surface-abutted against the box body 30.

The foregoing description of the exemplary embodiments of the presentinvention has been provided for the purposes of illustration anddescription. It is not intended to be exhaustive or to limit theinvention to the precise forms disclosed. Obviously, many modificationsand variations will be apparent to practitioners skilled in the art. Theembodiments were chosen and described in order to best explain theprinciples of the invention and its practical applications, therebyenabling others skilled in the art to understand the invention forvarious embodiments and with the various modifications as are suited tothe particular use contemplated. It is intended that the scope of theinvention be defined by the following claims and their equivalents.

What is claimed is:
 1. A packing body comprising: a bottom plate onwhich a packed body is placed; a box body that covers the packed body;and a restricting member, of which one end is fixed to the bottom plateand the other end protrudes toward a part of the packed body with a gapand that restricts lateral movement of the packed body by coming intocontact with the part of the packed body in a case where the packed bodyhas moved laterally, wherein clearance between the restricting memberand the part of the packed body is larger than a gap between an innersurface of the box body and the packed body, and the clearance isdefined as a movement amount obtained by adding an elastic deformationamount of the restricting member in a case where the packing body hasreceived a horizontal impact to the gap between the restricting memberand the part of the packed body.
 2. The packing body according to claim1, wherein in a case where the bottom plate on which the packed body isplaced has collided in a horizontal direction at a predetermined speed,the elastic deformation amount of the restricting member in thehorizontal direction is larger than a movement amount of the packed bodyin the horizontal direction, and a collision speed in the horizontaldirection is defined as 4.8 km/h.
 3. The packing body according to claim1, wherein in a case where the bottom plate on which the packed body isplaced has collided in a horizontal direction at a predetermined speed,a timing when an upper end of the packed body comes into contact withthe inner surface of the box body is earlier than a timing when a lowerend of the packed body comes into contact with the inner surface of thebox body, and a collision speed in the horizontal direction is definedas 4.8 km/h.
 4. The packing body according to claim 3, wherein a timedifference between the timings is 10 msec or less.
 5. The packing bodyaccording to claim 1, wherein a plate thickness of the restrictingmember is smaller than a plate thickness of the part of the packed body.6. The packing body according to claim 2, wherein a plate thickness ofthe restricting member is smaller than a plate thickness of the part ofthe packed body.
 7. The packing body according to claim 3, wherein aplate thickness of the restricting member is smaller than a platethickness of the part of the packed body.
 8. The packing body accordingto claim 4, wherein a plate thickness of the restricting member issmaller than a plate thickness of the part of the packed body.
 9. Thepacking body according to claim 5, wherein the restricting member isformed of high strength steel.
 10. The packing body according to claim6, wherein the restricting member is formed of high strength steel. 11.The packing body according to claim 7, wherein the restricting member isformed of high strength steel.
 12. The packing body according to claim8, wherein the restricting member is formed of high strength steel. 13.The packing body according to claim 1, wherein there is no buffermaterial between the packed body and the box body.
 14. The packing bodyaccording to claim 2, wherein there is no buffer material between thepacked body and the box body.
 15. The packing body according to claim 3,wherein there is no buffer material between the packed body and the boxbody.
 16. The packing body according to claim 4, wherein there is nobuffer material between the packed body and the box body.
 17. Thepacking body according to claim 5, wherein there is no buffer materialbetween the packed body and the box body.
 18. The packing body accordingto claim 6, wherein there is no buffer material between the packed bodyand the box body.
 19. The packing body according to claim 7, whereinthere is no buffer material between the packed body and the box body.20. The packing body according to claim 8, wherein there is no buffermaterial between the packed body and the box body.